Description
Pure Power, Simplified
The HiFi Rose RA280 delivers the essence of the groundbreaking RA180 in a more accessible form. Built on the same Class AD amplifier platform, it combines modern efficiency with natural, analog-like musicality, producing sound that is dynamic, transparent, and full of life.
Advanced Class AD Technology
Using the next generation of Class D amplifier engineering refined with analog sensibilities, the RA280 provides 250 watts per channel into 8 ohms (430W into 4 ohms) with ultra-low distortion. The result is breathtaking control, speed, and accuracy, ensuring effortless drive for a wide variety of loudspeakers.
Clean & Balanced Circuit Design
The RA280 features a robust linear power supply and fully balanced architecture that minimize noise and distortion. With lightning-fast transient response and excellent channel separation, it creates a spacious, detailed soundstage that brings music closer to its live performance roots.
Flexible Connectivity
Equipped with balanced XLR and unbalanced RCA inputs, the RA280 integrates easily into any HiFi setup. Its dedicated phono stage supports both MM and MC cartridges, giving vinyl enthusiasts a direct path to high-fidelity playback.
Refined Aesthetics
The RA280 echoes the industrial design language of the RA180 but with a sleeker, minimalist layout. The solid aluminum chassis not only enhances durability but also reduces vibration and electrical interference, while the elegant front panel layout ensures simple, intuitive operation.
Audiophile Performance for Every System
Whether paired with a HiFi Rose network streamer or other high-end sources, the RA280 offers the speed, clarity, and power needed to bring out the best in your music collection. It’s a modern integrated amplifier built for audiophiles who demand precision without complexity.
Specifications
| Design | |
| Size: | 16.9” W x 13.98” D x 4.06” H |
| Weight: | 20.94 lbs |
| Body: | Solid Aluminum, Rust-proof Steel |
| Amplifier Output | |
| FTC Power Output Rating (RMS): | 250W x 2ch (8Ω, 20Hz-20kHz, THD 0.07%) |
| Frequency Range: | 10Hz~80kHz (8Ω, 1W) |
| Load Impedance: | 8Ω |
| Sub Woofer Output | |
| Mono: | 1Wrms (2.218 dBu) |
| Balance Input: | 600mV (≈ 250W x 2ch) |
| Input Sensitivity | |
| Unbalance(Line1,2,3) Input: | 600mV (≈ 250W x 2ch) |
| Phono(MM) Input: | 5mV (≈ 250W x 2ch) |
| Input Impedance | |
| Unbalance(Line1,2,3) Input: | 47kΩ |
| Phono(MM) Input: | |
| Bandwidth | |
| 20Hz ~ 20kHz: | +0, 0dB (≈ 250W x 2ch, 8Ω Speaker Output) |
| 10Hz ~ 66kHz: | +0, -1dB (≈ 250W x 2ch, 8Ω Speaker Output) |
| 10Hz ~ 85kHz: | +0, -3dB (≈ 250W x 2ch, 8Ω Speaker Output) |
| 20Hz ~ 20kHz: | +0, 0dB (≈ 1W x 2ch, 8Ω Speaker Output) |
| 10Hz ~ 66kHz: | +0, -1dB (≈ 1W x 2ch, 8Ω Speaker Output) |
| 10Hz ~ 85kHz: | +0, -3dB (≈ 1W x 2ch, 8Ω Speaker Output) |
| THD (Total Harmonic Distortion) | |
| Balance & Unbalance(Line1,2,3) Input: | 0.05% (8Ω, 1W to 250W, 1kHz) |
| Damping Factor | |
| Speaker Output: | >250 (≈ 250W x 2ch) |
| S/N (Signal to Noise Ratio) | |
| Balanced / Unbalanced / Phono(MM): | 109dB / 109dB / 85dB (≈ 250W x 2ch) |
| Output Impedance | |
| Speaker Output: | 30mΩ (≈ 250W x 2ch) |
| Tone Control | |
| Bass(100Hz) / Treble(10kHz): | ±15dB (≈ 1W x 2ch, Speaker Output) |
| Turnover: | 500Hz (+13dB@100Hz) (≈ RIAA) |
| Phono(MM) | |
| Roll-off: | 2.1kHz (-13.74dB@10kHz) (≈ RIAA) |
| Power | |
| Output Power: | 500W (SMPS) (+ Maximum Output: 600W) |
| Input Voltage: | AC100-240V, 50/60Hz (Standby Mode Power Consumption < 0.5W) |
| Audio In/Out on Rear | |
| Trigger In: | Voltage can be turned on 3.3V~ 12V |
| Trigger Out: | Voltage can be turned on 12V |
| Remote Control | |
| IR Input: | 38kHz Infrared Ray (Within 10m of Operating Distance) |
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